 About 1839 Te Rauparaha made peace with the Ngāi Tahu, sending back to the south the chiefs Momo and Iwikau, and others of the more important among his captives.The Ngāti Toa and Ngāti Awa at this time began to come under the influence of the missionaries, and released their Ngāi Tahu slaves.Most of the returning Ngāi Tahu went to Banks Peninsula, Port Levy becoming the most populous settlement.